Explanation:
In the context of Amazon CloudFront, you can use CloudFront for on-demand streaming of media files that you’ve transcoded into the Microsoft Smooth Streaming format. To distribute Smooth Streaming content on demand, you have two options: As the origin for your distribution, specify a web server that can stream files that have been transcoded into Microsoft Smooth Streaming format. Enable Smooth Streaming in a CloudFront distribution. Smooth Streaming is a property of cache behaviors, which means that you can use one distribution to distribute Smooth Streaming media files as well as other content.
Reference: http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/on-demand-streaming-smooth.html